Wrench.



E. H. BURNSON.

WRENCH.

APPLICATION FILED FEB. 21. 191B.

:Puiented June 25, 1918.

I v INVENTOR E/"M/z/Zfiarwmz,

WITNESSES Mk W t -IBM,

ATTORNEY ERICK IE. BUB/NEON, F 'WAHPETON, NORTH DAKOTA.

WRENCH.

1,2tti,263.

Specification of Letters Patent. Patentmll June 25, 1.918.

Application flied February 21, 1918. Serial No. 218,541.

To all whom it may concern:

Be it known that 1, Enron H; Bonuses, a citizen of the U nitod States, residing at VVahpeton, in the county of hichland and type.

State of North Dakotm have invented certain new and useful Improvements in Wrenches, of which the following is a specification.

This invention relates to wrenches, and more particularly to a wrench of the socket members disposed in concentric relation so that, by removing some of the members, the sizes of the socket may be varied to suit circumstances. A further object is to provide a wrench of .very compact construction which may be readily used in places where there is but slight room available. Further objects will appear from the detailed description.

In the drawings:

Figure 1 is a top plan view of a wrench constructed in accordance with my inven' tion.

a Fig. 2 is a side view, the supporting frame and socket head, and associated parts being sectioned.

Fig. 3 is a fragmentary side view the handle and supporting frame being sectioned, showing the socket heads and associated parts in elevation.

Fig. 4 is a fragmentary sectional view through the socket members.

The handle 1 is of substantially flattened elliptical cross section and tapers toward the annular-supporting frame 2 formed integral therewith and provided at one end of the handle, the under face of this frame being in the plane of the under face of the handle. Frame 2 is adapted to snugly receive a cylindrical socket head 3 provided at its lower end with an outer peripheral flange 4 which engages the under face of -frame '2 so as to positively limit the movement of the head through the frame. Head 3 is provided at its approximat, center and in its outer face, withan annu ar groove 5. This annular groove is adapted to receive an arcuate locking plate 6 scoured lo handle 1 by means of a securing bolt 7 inserted therethrough and through the handle, a suitable nut 8 being threaded on the bolt beneath the handle. Plate 3 is so shaped as to fit snugly into groove 5 and extends substantially half way around the head 3. By this means, the head is'supportcd so as to be freely rotatable in frame 2, and may be readily removed from the frame by removing the plate 6. The portion of head 3 above groove 5 is out to provide a ratchet member 3". This ratchet is ongageablc by a dog 9 which is loosely mounted on bolt 7 above plate 6, and is normally forced into engagement with the teeth of the ratchet by a leaf spring 10 secured in the head of bolt 7 and engaging the outer face of the dog. Socket head 3 is provided with a central hexagonal opening or socket which is adapted to receive a nut so as to turn the same when the wrench is operated. onto a bolt,. this is readily accomplished by placing head 3 over the nut with the dog 9 directed upwardly, after which rotation is imparted to thchead by means of the handle 1 and the dog. By turning the wrench over, the nut may be threaded off of the bolt. as will be readily understood.

To permit the size of the socket of the head to be varied to accommodate taps of various sizes, I provide a plurality of socket members 12 which are disposed in concentrio relation, fitting snugly into each other, the outermost member fitting snugly into the socket of head 3. To retain these mem bers in the head, each of the members isprovided at its upper end with an outwardly directed lug 13whioh fits snugly into a corresponding recess in the upper edge of the preceding socket member, and the head 3 is also provided with a similar recess receiving a lug at the upper edge of the outermost socket member. A finger or latch 14 is rotatably mounted at one end on the upper face of head 3, by means of a screw 15 inserted through the same 'and secured in the head. The member 14 is adapted to be turned inwardly across the upper faces of the members 12 so as to prevent upward movement thereof. By this means, member 14 cooperates with the lugs to efi'ectually secure the socket members against movement If it is desired to thread the nnli in either direction, so that the wrench may i being cut to produce provided it is desired to vary the size of the socket for receivin the nut, this may be readily accomplished y turning finger 14: in inoperative position and removingvone or more of the members 12-until the socket is or desired size to receive the particular member which it .is desired to operate. After the socket has thus been adjusted the wrench is used in the ordinary manner.

ceiving square'nuts or taps, though this is not 'e ssential to the invention.

What I claim is: v v

1. In a wrench of the character described, a handle provided at one end with. an annular supporting frame, a cylindrical sockethead rotatably mounted'in said frame and at one end with an outwardly directed annular flange for positively limiting movement of the head through the frame, said head being "provided intermediate its ends with an outer annular channeha lockingplate mounted "on the frame and en gaging into said channel so .as to rotatably support the socket-head'in the frame, the upper portion of the body of the socket head. a ratchet member, a

- bolt and engaging dog agement with the ratchet member, a bolt mserted through said dog and the locking plate and removably secured to the handle,

said bolt serving to detachably secure the plate to the handle and to rockably ,support the dog, and a spring secured in the the dog so as to hold it in engagement with said ratchet member. 3

2. In a wrench a handle provided at one end with an annu lar supporting frame, a socket head rota? tably mounted in said frame, a plurality of socket members fittin snuglyin the head and in one another, said socket members being provided with interengaginglugs and recesses, with a recess to and'the socket head being provid receive a lug carried by the of the character described,

outermost one of said socket members,

whereby movement of the socketmembers thrqugh the socket-head in one direction is positively prevented, and a securing member carried by across the upper ends of the socket members so as to prevent movement thereofthrough the head in the other direction, said member being movable out of engagement with the socket members so as to permit removal of one or more thereof whereby the size of the the socket head and movable socket produced in said socket head may be varied to accommodate nutsout difierent sizes. a

In testimony whereof I affix my signature in presence of two witnesses.

Witnesses: G. H. Runner, RUTH B. Wmrrs.

Gopies of this patent may be obtained for five cents each, by addressing the Commissioner of Eatents,

. 1 :wasmnctoancx Y ERICK H.- eunuson. 

